Title:
水冷式鉄鋼製構造物
Document Type and Number:
Japanese Patent JP3576479
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a water cooled steel structure with deposited protection film having excellent peeling resistance, wear resistance, corrosion resistance and thermal fatigue stress corrosion cracking resistance. SOLUTION: A film of a material containing, by mass, <=15% Cr, <=8% Fe, <=4% Cu, 1 to 3% B, 1.5 to 6% Si, <=2% W and <=1% C, and the balance substantially Ni and having a Charpy impact value of >=170 J/cm2 is deposited on the surface of a structure to have a thickness of 100 to 2,000 μm by a powder spraying method. After that, the region where the film is deposited is held at 1,223 to 1,353K for >=1 sec to deposit a protection film whose surface hardness is controlled to >=20 by HRC scale on the structure.
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Inventors:
Masatsugu Kawagoe
Toru Mukai
Kyosuke Shirasaki
Takaki Izunaga
Kazunori Sakata
Tomio Morita
Toru Mukai
Kyosuke Shirasaki
Takaki Izunaga
Kazunori Sakata
Tomio Morita
Application Number:
JP2000338555A
Publication Date:
October 13, 2004
Filing Date:
November 07, 2000
Export Citation:
Assignee:
jfe Steel Corporation
Fujigi Kosan Co., Ltd.
Fujigi Kosan Co., Ltd.
International Classes:
C21C5/40; C22C19/05; C23C4/06; F27D17/00; (IPC1-7): C23C4/06; C21C5/40; C22C19/05; F27D17/00
Domestic Patent References:
| JP52043736A | ||||
| JP11286767A | ||||
| JP10053880A | ||||
| JP10054516A | ||||
| JP6323298A |
Attorney, Agent or Firm:
Yasuo Ishikawa